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ESS60 in Mighty K9: What C60 Is and What Research Shows
ESS60 is a trademarked form of C60 fullerene, a cage of 60 carbon atoms dissolved in the olive oil. Mighty K9 has 1.6 mg per 2 mL serving. Research is thin and all in animals: small rat and mouse studies with mixed results and one 9-day study in 6 beagles. No study has tested C60 for dog joints.
Written by the Mighty K9 editorial teamUpdated
The molecule
What is ESS60?
ESS60 is a brand name for C60 fullerene, a hollow ball made of 60 carbon atoms. In Mighty K9 it is dissolved in organic extra virgin olive oil, because C60 does not mix with water.
The label lists 1.6 mg of ESS60 in each 2 mL serving, about 0.8 mg per mL. It is the second of three ingredients, after the olive oil. The sales page sells it as an antioxidant for "cellular" protection.
The prize
Did C60 win a Nobel Prize?
The scientists who found C60 won the 1996 Nobel Prize in Chemistry. The prize was "for their discovery of fullerenes," a chemistry finding about a new shape of carbon (Nobel Prize, 1996).
It said nothing about health, joints or dogs. When the sales page calls C60 a "Nobel Prize-winning molecule," read it as marketing, not evidence.
Evidence ladder
What does research on C60 show?
Most C60 research is in rats and mice, and it disagrees. The only dog study was tiny and did not look at joints.
- DiscoveryFullerenes found (1996 Nobel Prize in Chemistry)
A chemistry prize for discovering the molecule, not for any health effect. (Nobel Prize, 1996)
- RatsBaati 2012: 3 groups of 6 rats
C60 in olive oil: estimated median life 42 months vs 26 on olive oil alone. Tiny groups, never repeated. (Baati et al., 2012)
- MiceGrohn 2021: larger mouse studies
No lifespan gain (144 vs 145 weeks). Light-exposed C60 oil was toxic. (Grohn et al., 2021)
- DogsHui 2023: 6 beagles, 9 days
C60 in grape seed oil, no control group, one blood marker. No joints, no olive oil. (Hui et al., 2023)
- Dog jointsNo study found
No trial of C60, ESS60 or Mighty K9 for joints, stiffness, mobility or aging in dogs. (PubMed search, C60 and dogs)
Bar length shows how directly each step speaks to the question a dog owner asks: "Will this help my dog's joints?" It is our editorial summary of the linked studies, not a score from any study.
Study by study
Which C60 studies matter for dog owners?
Six sources cover what is known. Two are safety papers, and one is a search showing what has never been studied.
| Source | What was done | What it means |
|---|---|---|
| Baati 2012 (Baati et al., 2012) | 3 groups of 6 rats; C60 in olive oil | Estimated median life 42 vs 26 months. Never independently repeated. |
| Hui 2023 (Hui et al., 2023) | 6 beagles, 9 days, C60 in grape seed oil | No control group; one blood marker (CRP). No joints. |
| Grohn 2021 (Grohn et al., 2021) | Larger mouse studies | No lifespan gain: 144 vs 145 weeks. Light-exposed oil killed 25-50% of mice. |
| Burres 2024 (Burres et al., 2024) | 14 days, 20 rats | No harm seen, but funded by a C60 seller. |
| Ozdemir 2024 (Ozdemir et al., 2024) | Review | Long-term safety needs study; C60 can act as an antioxidant or a pro-oxidant. |
| PubMed search (PubMed search, C60 and dogs) | 17 results for C60 and dogs | None on joints, mobility or aging. |
Dose
How much ESS60 does my dog get per kg?
One serving gives about 0.16 mg per kg to a 10 kg (22 lb) dog and about 0.53 mg per kg to a 3 kg (7 lb) dog. Small dogs get more per kg because the label gives one 2 mL serving to all sizes.
The rats got 1.7 mg per kg on a tapering schedule, and the mice about 4 mg per kg. Doses do not transfer neatly between species, so those numbers are context, not a target. Never add more to "match" a study.
Storage
Why does C60 oil need to stay out of the light?
In the Grohn study, C60 oil left in strong light for 4 to 8 days killed 25-50% of the mice that got it (Grohn et al., 2021). Oil kept dark did not.
Mighty K9 comes in amber glass, and the product page says "Store in a cool and dark place." Keep the cap on and the bottle in a cupboard, never on a sunny sill.
The same study found commercial C60 oils ranged from 0.57 to 1.4 mg per mL. That is why the 1.6 mg on the panel is worth checking against a lab report.
Open questions
Is ESS60 safe for dogs long term?
Nobody knows yet. The longest safety data is in rodents, and the only dog study lasted 9 days.
- Unknown: effects of daily use for months in dogs
- Unknown: any effect on joints, stiffness or mobility
- Unknown: how it mixes with NSAIDs or other medicines
| Label name | ESS60® (Contains 100% ESS60, bottle front) |
|---|---|
| What it is | Carbon-60 fullerene, C60 · Carbon molecule dissolved in oil |
| Position on the label | 2 of 3 (Extra Virgin Olive Oil, ESS60, Bacon Flavor) |
| Amount per 2 mL serving | 1.6 mg per 2 mL serving (Guaranteed Analysis) |
| What research has looked at | Rats 1.7 mg/kg; mice about 4 mg/kg; one 9-day study in 6 beagles |
| Strength of evidence | Very limited, animal studies only |
| What it is sold for | Sold as an antioxidant for cellular health |
| Main caution | Long-term safety in dogs is unknown; C60 oil left in strong light turned toxic to mice. |
Ask your vet before starting if your dog takes medicine. The side effects page covers what to watch for.
Sources
ESS60 sources and other ingredients
- The prolongation of the lifespan of rats by repeated oral administration of (60)fullerene. Baati T, et al. Biomaterials, 2012.Three groups of 6 rats. Estimated median lifespan 42 months with C60 in olive oil vs 26 months with olive oil and 22 with water. Dose 1.7 mg/kg, given daily, then weekly, then every 2 weeks.
- C60 in olive oil causes light-dependent toxicity and does not extend lifespan in mice. Grohn KJ, et al. GeroScience 43(2):579-591, 2021.No lifespan gain: median 144 vs 145 weeks (p=0.87) and 127 vs 130/128 weeks. C60 oil exposed to light for 4-8 days killed 25-50% of mice. Commercial products varied from 0.57 to 1.4 mg/mL.
- A Regulatory Compliant Short-Term Oral Toxicity Study of Soluble (60)Fullerenes in Rats. Burres E, et al. EXCLI Journal 23:772-786, 2024.14 days, 20 rats, 3.8 mg/kg a day: no adverse effects seen, but a no-adverse-effect level could not be set. Funded by SES Research, a C60 seller; four authors own or work for it.
- The effects of fullerene (C60)-enriched olive oil on human health. Ozdemir, Goksel, Yorukoglu. Hrana i ishrana 65(2), 2024.Review: human studies are very limited; long-term safety needs more study; C60 can act as an antioxidant or a pro-oxidant depending on conditions.
- Anti-Inflammatory and Antioxidant Effects of Liposoluble C60 at the Cellular, Molecular, and Whole-Animal Levels. Hui M, et al. Journal of Inflammation Research 16:83-93, 2023.The only oral C60 study in dogs: 6 beagles, 9 days, C60 in grape seed oil, no control group, measured only blood C-reactive protein. No joint, mobility or aging outcomes.
- PubMed search: (fullerene* OR C60) AND (dog OR dogs OR canine). National Library of Medicine, searched October 11, 2026, 2026.17 results; only 2 gave fullerenes to living dogs, and none studied joints, mobility, osteoarthritis or aging, or C60 in olive oil.
- The Nobel Prize in Chemistry 1996: press release. NobelPrize.org, 1996.Awarded to Curl, Kroto and Smalley "for their discovery of fullerenes": a chemistry discovery, not a health finding.
FAQ
ESS60 and C60 FAQ
What is ESS60 in Mighty K9?
ESS60 is a trademarked form of C60 fullerene, a ball of 60 carbon atoms. Mighty K9 dissolves it in organic olive oil at 1.6 mg per 2 mL serving. It is not a vitamin or a nutrient, and AAFCO does not list it as essential for dogs.
Is C60 safe for dogs?
Short-term animal studies found no obvious harm, but long-term safety in dogs is unknown. The only oral dog study gave C60 to 6 beagles for 9 days. A rat safety study lasted 14 days and was funded by a C60 seller. Ask your vet first.
Does C60 help dogs with joint pain?
There is no study showing that. No trial has tested C60, ESS60 or Mighty K9 for dog joints, stiffness or mobility. Limping or stiffness that does not ease needs a vet exam. Vet-prescribed NSAIDs and a lean weight have far stronger evidence.
Did C60 make rats live longer?
One 2012 study estimated longer lives in a group of 6 rats given C60 in olive oil. It was never independently repeated. A larger 2021 mouse study found no lifespan gain at all, so the rat result stays unconfirmed.
Is C60 stronger than vitamin C, as the sales page says?
The sales page says 172 times more powerful, but gives no source, and we found none. Research shows C60 can act as an antioxidant or a pro-oxidant depending on conditions. A lab number like that would not tell you what happens inside a dog anyway.
Can light make C60 oil harmful?
Yes, in mice. C60 olive oil left in strong light for 4 to 8 days became toxic and killed 25 to 50% of the mice that got it. Store Mighty K9 in its amber bottle, capped, in a cool, dark cupboard.
Who wrote this
Written and reviewed by
Plain-language pages built from the label panel, the sales page and linked veterinary and public sources.
Last updated . Both our editorial standards and how we check reviews are open to read. This website is run by Themightyk9, the Mighty K9 U.S. shop and a stocking partner, not by the manufacturer. Buying through our order links earns us money.
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